internal static void Test3()
{
GenericCollection <int> intcoll = new GenericCollection <int>();
intcoll.Add(100);
GenericCollection <string> strColl = new GenericCollection <string>();
strColl.Add("string1");
GenericCollection <Employee> empcoll = new GenericCollection <Employee>();
empcoll.Add(new Employee {
EmployeeId = 1, EmployeeName = ""
});
int x = intcoll.GetAt(0);
string s = strColl[0];
var empList = empcoll.GetAll();
int a = 10, b = 20;
double d1 = 10.0, d2 = 50.0;
String s1 = "Hello", s2 = "World";
Console.WriteLine($"Before Swap,\n\t a={a},a={a},b={b},\n\td1={d1},d2={d2}\n\ts1={s1},s2={s2}");
Swap <int>(ref a, ref b);
Swap <double>(ref d1, ref d2);
Swap <string>(ref s1, ref s2);
Console.WriteLine($"After Swap,\n\t a={a},a={a},b={b},\n\td1={d1},d2={d2}\n\ts1={s1},s2={s2}");
}
